Fifty-five years after the release of their first recording, Katia and Marielle Labèque celebrate an extraordinary artistic journey with '55', a landmark 3-CD boxed set bringing together new recordings and curated archive treasures spanning more than half a century. First released in 1970 under the artistic guidance of Olivier Messiaen, the Labèque sisters' debut album marked the beginning of one of the most singular careers in contemporary music.